Big Sur Beta 8: Asking for username input on restart.

I have downloaded the latest Beta 8 update for Big Sur yesterday and it is always asking me to input my username on the restart as well as my password. There is only one account on my Mac but the username field is empty and i have to write my username to log in.
Usually my username is already there with my user image and it only asks for password.

Thanks.
Users & Group >> Click to the lock icon >> unlock >>. Display login window as >> List of users

Good luck.
Was that a typo Beta 8? I have and show Beta 6 as the latest release. Confirm.
Big Sur Beta 8: Asking for username input on restart.
 
 
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